(19)

(11)

EP 4 139 011 A1

(12)

(43) Date of publication: 01.03.2023 Bulletin 2023/09 (21) Application number: 21793373.8 (22) Date of filing: 21.04.2021

(51) International Patent Classification (IPC):  A63B 69/00(2006.01) (52) Cooperative Patent Classification (CPC): A63B 71/03; A63B 2209/00; A63B 2225/09; A63B 2225/605; A63B 2071/0694; A63B 2225/093; A63B 69/0075; A63B 2214/00 (86) International application number: PCT/US2021/028300 (87) International publication number: WO 2021/216639 (28.10.2021 Gazette 2021/43)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 22.04.2020 US 202016855461 (71) Applicant: Johnson, David Chandler, Arizona 85224 (US)	(72) Inventor: Johnson, David Chandler, Arizona 85224 (US) (74) Representative: Legl, Stefan  LLM IP Patentanwaltskanzlei Hofmannstrasse 60 81379 München 81379 München (DE)